exhaust options

[The Don]

Sorry to thread jack
I picked up my 1000Sie after having the computer replaced, after taking it for a ride I noticed that if I geared down and then held the throttle just of idle then the exhaust would start popping. It didn't do it with the original computer. I asked my brother in-law and he seems to think that the bike is running to lean, does that sound right.

[Spider]

yep, when I installed my ecu on my 1000s, it popped and crackled awfully. very lean was the diagnosis.

put the covered airbox (which should enrich the system and got it down to the shop for trimming!).

[perhaps an end to the threadjack....but perhaps not]

[bazz20]

Sorry to thread jack
I picked up my 1000Sie after having the computer replaced, after taking it for a ride I noticed that if I geared down and then held the throttle just of idle then the exhaust would start popping. It didn't do it with the original computer. I asked my brother in-law and he seems to think that the bike is running to lean, does that sound right.

get the bike to ho ever fixed it fast ,  if you have any mods tell them they shouldve ask you in the first place and did a test with the computer hooked up to see how it was running but they can only change the ecu slightly , sounds like the rong ecu bazz

[The Don]

Thanks Ill ring them tomorrow

[Ita]

ive also done a little trick to the computer to boost torque , ever wondered why you have more power when bike is cold simple the computer runs the bike ritcher, when bikes warms up they run leener, well we all know that well running a higher octane fuel will burn cleaner ( if the compression ratio is right ) so the o2 sensor will read this and richern the mixture more so you get more power , now you can even richern a bit more by by tricking the computer into think that the air its breathing on is colder than what it really is and the easyest way to do that is run a littel chip which has a higher resistance than the normal air temp sensor  so the difference between the air temp sensor and o2 sensor is mutch more , so the computter think its very cold and richerns the mix evern more more power and a lot  more toque  cheers bazz

Gedday Bazz....

Interesting theroy, but it goes against a couple of accepted tuning laws....

1.   When it's cold, you get more power because the air is much denser.   More air = more power.   Bit like the science behind a supercharger or a cold airbox.

2.   When you tune a motor on a dyno, the most horsepower is found as you lean the motor out not enrichen it.   Horsepower plunges as you richen the mixture as that causes poor combustion!!!

So unless your motor was really lean to start with, a higher fuel/air ratio wont net more power

Ita

[bazz20]

Gedday Bazz....

Interesting theroy, but it goes against a couple of accepted tuning laws....

1.   When it's cold, you get more power because the air is much denser.   More air = more power.   Bit like the science behind a supercharger or a cold airbox.

2.   When you tune a motor on a dyno, the most horsepower is found as you lean the motor out not enrichen it.   Horsepower plunges as you richen the mixture as that causes poor combustion!!!

So unless your motor was really lean to start with, a higher fuel/air ratio wont net more power

Ita

right  you are ita youll get no arguments here but these bikes run better with a custom map why cause the custom lets one thing happen longer opening times for the fuel injectors  , so we know that they run very leen leener than they should so if you make the engine ritcher more power easy  and how do i know this because of a dyno and reading the voltage of the co2 censor my little tricks have got me 12 more poneys with only cored cans another strange thing that has been found by the boys at sport rider motor cycles is taking the cat of you lost torque  regards bazz

[techno]

Hey Bazz,

I'm interested in what you say about the local  coming down on riders who remove their cats.

I had mine removed earlier this year but I'm still running the standard cans. Its louder but not as loud as it could be.

I've never even been pulled up so I can't say the lack of a cat has come to anyones attention. If I get asked I'll just say this is how it came.

[kursed]

so does anyone know the proper part numbers for the full system to suit an 06 s2r 1000? I can only find a partial system for the s2r 1000 (pipes that connect to the cat only). Hopefully having the correct details will allow me to confirm the exact kit i'd need to suit when buying from OS. don't want to have to ship it back if I got it wrong considering its upwards of $200 shipped

[bazz20]

hi techno youll proberly never have any trouble only if you get a yellow sticker for undue noise , the problem came from a fella that got fined in melbourne for undue noise from the   so he took it to court and won because the local   are not trained in the use and dont have a degree in noise so the   saying hes bike was too loud they had no real proof only say so ,when they brought in this anti hoon legalisation it covered this prob so if they think your bike,car is to noisey of you go to a inspection station , in saying that i no a couple of   and asked them about this ,with cored canns they dont have a problem with as i keep to the speed limits around town not go reving and roaring ,they use this law to mainly harass the harleys , but in saying that i would remove my cat to except have found it mucks up the o2 sencor and you lose a little torque , talking to people a lot smarter than me for an o2 cencor to work properly they need to be a certain size and i no im get fined cause i cant help myself cheers bazz

[bazz20]

so does anyone know the proper part numbers for the full system to suit an 06 s2r 1000? I can only find a partial system for the s2r 1000 (pipes that connect to the cat only). Hopefully having the correct details will allow me to confirm the exact kit i'd need to suit when buying from OS. don't want to have to ship it back if I got it wrong considering its upwards of $200 shipped

when you say full kit do you mean ecu as well

[Spider]

http://www.ducati.com/shop/category.jsp?catid=cat960130

and headers if wanted:

http://www.ducati.com/shop/category.jsp?catid=cat960129

I think I'm helping here...

[bazz20]

http://www.ducati.com/shop/category.jsp?catid=cat960130

and headers if wanted:

http://www.ducati.com/shop/category.jsp?catid=cat960129

I think I'm helping here...

thanks spider my book doesnt have a full kit , thats somthing i did not know is the duc cat eliminter is only mild steel not stainless

[kursed]

thanks guys. thats great. so a full system seems to be the cat eliminator + the slipon kit as linked above.

[Spider]

ah, when I said I'm trying, I meant - this is what DP recommends or has - as far as the header goes....well, I believe you can get other brands, sil-moto, QD? and Marving. I don't have a S2R so haven't done a heap of research on this...


Monsterparts Marving header

Moto wheels QD midpipe

I think you need to do more research buying laying down he plastic!